Control device and control method for hybrid vehicle

Details Control device and control method for hybrid vehicle Control device and control method for hybrid vehicle

2008-03-14

2011-11-08

Holmes, Justin (Department: 3655)

Interrelated power delivery controls, including engine control

Electric engine

With transmission control

Reexamination Certificate

active

08052571

ABSTRACT:
In a hybrid vehicle that includes an engine and a motor-generator connected to the engine through a power split device, upon acceleration in a running state, there may arise a case where the rotational speed of the MG1enters a lockup area and, then, the MG1cannot pull out of the lockup state with ease in such a manner that the rotational speed of the MG1is shifted from a normal rotation area to a reverse rotation area, in accordance with an increase of a torque produced by the MG1. In this case, the engine is controlled such that a torque produced by the engine is decreased. Thus, the rotational speeds of the engine and MG1are reduced entirely, so that the MG1can pull out of the lockup state without increasing the torque produced by the MG1any more.

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